cregit-Linux how code gets into the kernel

Release 4.7 drivers/net/ethernet/brocade/bna/bfa_ioc.h

/*
 * Linux network driver for QLogic BR-series Converged Network Adapter.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License (GPL) Version 2 as
 * published by the Free Software Foundation
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 */
/*
 * Copyright (c) 2005-2014 Brocade Communications Systems, Inc.
 * Copyright (c) 2014-2015 QLogic Corporation
 * All rights reserved
 * www.qlogic.com
 */

#ifndef __BFA_IOC_H__

#define __BFA_IOC_H__

#include "bfa_cs.h"
#include "bfi.h"
#include "cna.h"


#define BFA_IOC_TOV		3000	
/* msecs */

#define BFA_IOC_HWSEM_TOV	500	
/* msecs */

#define BFA_IOC_HB_TOV		500	
/* msecs */

#define BFA_IOC_POLL_TOV	200	
/* msecs */

#define BNA_DBG_FWTRC_LEN      (BFI_IOC_TRC_ENTS * BFI_IOC_TRC_ENT_SZ + \
                                BFI_IOC_TRC_HDR_SZ)

/* PCI device information required by IOC */

struct bfa_pcidev {
	
int	pci_slot;
	
u8	pci_func;
	
u16	device_id;
	
u16	ssid;
	
void	__iomem *pci_bar_kva;
};

/* Structure used to remember the DMA-able memory block's KVA and Physical
 * Address
 */

struct bfa_dma {
	
void	*kva;	/* ! Kernel virtual address     */
	
u64	pa;	/* ! Physical address           */
};


#define BFA_DMA_ALIGN_SZ	256

/* smem size for Crossbow and Catapult */

#define BFI_SMEM_CB_SIZE	0x200000U	
/* ! 2MB for crossbow   */

#define BFI_SMEM_CT_SIZE	0x280000U	
/* ! 2.5MB for catapult */

/* BFA dma address assignment macro. (big endian format) */

#define bfa_dma_be_addr_set(dma_addr, pa)	\
		__bfa_dma_be_addr_set(&dma_addr, (u64)pa)

static inline void __bfa_dma_be_addr_set(union bfi_addr_u *dma_addr, u64 pa) { dma_addr->a32.addr_lo = (u32) htonl(pa); dma_addr->a32.addr_hi = (u32) htonl(upper_32_bits(pa)); }

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#define bfa_alen_set(__alen, __len, __pa) \ __bfa_alen_set(__alen, __len, (u64)__pa)
static inline void __bfa_alen_set(struct bfi_alen *alen, u32 len, u64 pa) { alen->al_len = cpu_to_be32(len); bfa_dma_be_addr_set(alen->al_addr, pa); }

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struct bfa_ioc_regs { void __iomem *hfn_mbox_cmd; void __iomem *hfn_mbox; void __iomem *lpu_mbox_cmd; void __iomem *lpu_mbox; void __iomem *lpu_read_stat; void __iomem *pss_ctl_reg; void __iomem *pss_err_status_reg; void __iomem *app_pll_fast_ctl_reg; void __iomem *app_pll_slow_ctl_reg; void __iomem *ioc_sem_reg; void __iomem *ioc_usage_sem_reg; void __iomem *ioc_init_sem_reg; void __iomem *ioc_usage_reg; void __iomem *host_page_num_fn; void __iomem *heartbeat; void __iomem *ioc_fwstate; void __iomem *alt_ioc_fwstate; void __iomem *ll_halt; void __iomem *alt_ll_halt; void __iomem *err_set; void __iomem *ioc_fail_sync; void __iomem *shirq_isr_next; void __iomem *shirq_msk_next; void __iomem *smem_page_start; u32 smem_pg0; }; /* IOC Mailbox structures */ typedef void (*bfa_mbox_cmd_cbfn_t)(void *cbarg); struct bfa_mbox_cmd { struct list_head qe; bfa_mbox_cmd_cbfn_t cbfn; void *cbarg; u32 msg[BFI_IOC_MSGSZ]; }; /* IOC mailbox module */ typedef void (*bfa_ioc_mbox_mcfunc_t)(void *cbarg, struct bfi_mbmsg *m); struct bfa_ioc_mbox_mod { struct list_head cmd_q; /*!< pending mbox queue */ int nmclass; /*!< number of handlers */ struct { bfa_ioc_mbox_mcfunc_t cbfn; /*!< message handlers */ void *cbarg; } mbhdlr[BFI_MC_MAX]; }; /* IOC callback function interfaces */ typedef void (*bfa_ioc_enable_cbfn_t)(void *bfa, enum bfa_status status); typedef void (*bfa_ioc_disable_cbfn_t)(void *bfa); typedef void (*bfa_ioc_hbfail_cbfn_t)(void *bfa); typedef void (*bfa_ioc_reset_cbfn_t)(void *bfa); struct bfa_ioc_cbfn { bfa_ioc_enable_cbfn_t enable_cbfn; bfa_ioc_disable_cbfn_t disable_cbfn; bfa_ioc_hbfail_cbfn_t hbfail_cbfn; bfa_ioc_reset_cbfn_t reset_cbfn; }; /* IOC event notification mechanism. */ enum bfa_ioc_event { BFA_IOC_E_ENABLED = 1, BFA_IOC_E_DISABLED = 2, BFA_IOC_E_FAILED = 3, }; typedef void (*bfa_ioc_notify_cbfn_t)(void *, enum bfa_ioc_event); struct bfa_ioc_notify { struct list_head qe; bfa_ioc_notify_cbfn_t cbfn; void *cbarg; }; /* Initialize a IOC event notification structure */ #define bfa_ioc_notify_init(__notify, __cbfn, __cbarg) do { \ (__notify)->cbfn = (__cbfn); \ (__notify)->cbarg = (__cbarg); \ } while (0) struct bfa_iocpf { bfa_fsm_t fsm; struct bfa_ioc *ioc; bool fw_mismatch_notified; bool auto_recover; u32 poll_time; }; struct bfa_ioc { bfa_fsm_t fsm; struct bfa *bfa; struct bfa_pcidev pcidev; struct timer_list ioc_timer; struct timer_list iocpf_timer; struct timer_list sem_timer; struct timer_list hb_timer; u32 hb_count; struct list_head notify_q; void *dbg_fwsave; int dbg_fwsave_len; bool dbg_fwsave_once; enum bfi_pcifn_class clscode; struct bfa_ioc_regs ioc_regs; struct bfa_ioc_drv_stats stats; bool fcmode; bool pllinit; bool stats_busy; /*!< outstanding stats */ u8 port_id; struct bfa_dma attr_dma; struct bfi_ioc_attr *attr; struct bfa_ioc_cbfn *cbfn; struct bfa_ioc_mbox_mod mbox_mod; const struct bfa_ioc_hwif *ioc_hwif; struct bfa_iocpf iocpf; enum bfi_asic_gen asic_gen; enum bfi_asic_mode asic_mode; enum bfi_port_mode port0_mode; enum bfi_port_mode port1_mode; enum bfa_mode port_mode; u8 ad_cap_bm; /*!< adapter cap bit mask */ u8 port_mode_cfg; /*!< config port mode */ }; struct bfa_ioc_hwif { enum bfa_status (*ioc_pll_init) (void __iomem *rb, enum bfi_asic_mode m); bool (*ioc_firmware_lock) (struct bfa_ioc *ioc); void (*ioc_firmware_unlock) (struct bfa_ioc *ioc); void (*ioc_reg_init) (struct bfa_ioc *ioc); void (*ioc_map_port) (struct bfa_ioc *ioc); void (*ioc_isr_mode_set) (struct bfa_ioc *ioc, bool msix); void (*ioc_notify_fail) (struct bfa_ioc *ioc); void (*ioc_ownership_reset) (struct bfa_ioc *ioc); bool (*ioc_sync_start) (struct bfa_ioc *ioc); void (*ioc_sync_join) (struct bfa_ioc *ioc); void (*ioc_sync_leave) (struct bfa_ioc *ioc); void (*ioc_sync_ack) (struct bfa_ioc *ioc); bool (*ioc_sync_complete) (struct bfa_ioc *ioc); bool (*ioc_lpu_read_stat) (struct bfa_ioc *ioc); void (*ioc_set_fwstate) (struct bfa_ioc *ioc, enum bfi_ioc_state fwstate); enum bfi_ioc_state (*ioc_get_fwstate) (struct bfa_ioc *ioc); void (*ioc_set_alt_fwstate) (struct bfa_ioc *ioc, enum bfi_ioc_state fwstate); enum bfi_ioc_state (*ioc_get_alt_fwstate) (struct bfa_ioc *ioc); }; #define bfa_ioc_pcifn(__ioc) ((__ioc)->pcidev.pci_func) #define bfa_ioc_devid(__ioc) ((__ioc)->pcidev.device_id) #define bfa_ioc_bar0(__ioc) ((__ioc)->pcidev.pci_bar_kva) #define bfa_ioc_portid(__ioc) ((__ioc)->port_id) #define bfa_ioc_asic_gen(__ioc) ((__ioc)->asic_gen) #define bfa_ioc_is_default(__ioc) \ (bfa_ioc_pcifn(__ioc) == bfa_ioc_portid(__ioc)) #define bfa_ioc_speed_sup(__ioc) \ BFI_ADAPTER_GETP(SPEED, (__ioc)->attr->adapter_prop) #define bfa_ioc_get_nports(__ioc) \ BFI_ADAPTER_GETP(NPORTS, (__ioc)->attr->adapter_prop) #define bfa_ioc_stats(_ioc, _stats) ((_ioc)->stats._stats++) #define bfa_ioc_stats_hb_count(_ioc, _hb_count) \ ((_ioc)->stats.hb_count = (_hb_count)) #define BFA_IOC_FWIMG_MINSZ (16 * 1024) #define BFA_IOC_FW_SMEM_SIZE(__ioc) \ ((bfa_ioc_asic_gen(__ioc) == BFI_ASIC_GEN_CB) \ ? BFI_SMEM_CB_SIZE : BFI_SMEM_CT_SIZE) #define BFA_IOC_FLASH_CHUNK_NO(off) (off / BFI_FLASH_CHUNK_SZ_WORDS) #define BFA_IOC_FLASH_OFFSET_IN_CHUNK(off) (off % BFI_FLASH_CHUNK_SZ_WORDS) #define BFA_IOC_FLASH_CHUNK_ADDR(chunkno) (chunkno * BFI_FLASH_CHUNK_SZ_WORDS) /* IOC mailbox interface */ bool bfa_nw_ioc_mbox_queue(struct bfa_ioc *ioc, struct bfa_mbox_cmd *cmd, bfa_mbox_cmd_cbfn_t cbfn, void *cbarg); void bfa_nw_ioc_mbox_isr(struct bfa_ioc *ioc); void bfa_nw_ioc_mbox_regisr(struct bfa_ioc *ioc, enum bfi_mclass mc, bfa_ioc_mbox_mcfunc_t cbfn, void *cbarg); /* IOC interfaces */ #define bfa_ioc_pll_init_asic(__ioc) \ ((__ioc)->ioc_hwif->ioc_pll_init((__ioc)->pcidev.pci_bar_kva, \ (__ioc)->asic_mode)) #define bfa_ioc_lpu_read_stat(__ioc) do { \ if ((__ioc)->ioc_hwif->ioc_lpu_read_stat) \ ((__ioc)->ioc_hwif->ioc_lpu_read_stat(__ioc)); \ } while (0) void bfa_nw_ioc_set_ct_hwif(struct bfa_ioc *ioc); void bfa_nw_ioc_set_ct2_hwif(struct bfa_ioc *ioc); void bfa_nw_ioc_ct2_poweron(struct bfa_ioc *ioc); void bfa_nw_ioc_attach(struct bfa_ioc *ioc, void *bfa, struct bfa_ioc_cbfn *cbfn); void bfa_nw_ioc_auto_recover(bool auto_recover); void bfa_nw_ioc_detach(struct bfa_ioc *ioc); void bfa_nw_ioc_pci_init(struct bfa_ioc *ioc, struct bfa_pcidev *pcidev, enum bfi_pcifn_class clscode); u32 bfa_nw_ioc_meminfo(void); void bfa_nw_ioc_mem_claim(struct bfa_ioc *ioc, u8 *dm_kva, u64 dm_pa); void bfa_nw_ioc_enable(struct bfa_ioc *ioc); void bfa_nw_ioc_disable(struct bfa_ioc *ioc); void bfa_nw_ioc_error_isr(struct bfa_ioc *ioc); bool bfa_nw_ioc_is_disabled(struct bfa_ioc *ioc); bool bfa_nw_ioc_is_operational(struct bfa_ioc *ioc); void bfa_nw_ioc_get_attr(struct bfa_ioc *ioc, struct bfa_ioc_attr *ioc_attr); enum bfa_status bfa_nw_ioc_fwsig_invalidate(struct bfa_ioc *ioc); void bfa_nw_ioc_notify_register(struct bfa_ioc *ioc, struct bfa_ioc_notify *notify); bool bfa_nw_ioc_sem_get(void __iomem *sem_reg); void bfa_nw_ioc_sem_release(void __iomem *sem_reg); void bfa_nw_ioc_hw_sem_release(struct bfa_ioc *ioc); void bfa_nw_ioc_fwver_get(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr); bool bfa_nw_ioc_fwver_cmp(struct bfa_ioc *ioc, struct bfi_ioc_image_hdr *fwhdr); void bfa_nw_ioc_get_mac(struct bfa_ioc *ioc, u8 *mac); void bfa_nw_ioc_debug_memclaim(struct bfa_ioc *ioc, void *dbg_fwsave); int bfa_nw_ioc_debug_fwtrc(struct bfa_ioc *ioc, void *trcdata, int *trclen); int bfa_nw_ioc_debug_fwsave(struct bfa_ioc *ioc, void *trcdata, int *trclen); /* * Timeout APIs */ void bfa_nw_ioc_timeout(struct bfa_ioc *ioc); void bfa_nw_ioc_hb_check(struct bfa_ioc *ioc); void bfa_nw_iocpf_timeout(struct bfa_ioc *ioc); void bfa_nw_iocpf_sem_timeout(struct bfa_ioc *ioc); /* * F/W Image Size & Chunk */ u32 *bfa_cb_image_get_chunk(enum bfi_asic_gen asic_gen, u32 off); u32 bfa_cb_image_get_size(enum bfi_asic_gen asic_gen); /* * Flash module specific */ typedef void (*bfa_cb_flash) (void *cbarg, enum bfa_status status); struct bfa_flash { struct bfa_ioc *ioc; /* back pointer to ioc */ u32 type; /* partition type */ u8 instance; /* partition instance */ u8 rsv[3]; u32 op_busy; /* operation busy flag */ u32 residue; /* residual length */ u32 offset; /* offset */ enum bfa_status status; /* status */ u8 *dbuf_kva; /* dma buf virtual address */ u64 dbuf_pa; /* dma buf physical address */ bfa_cb_flash cbfn; /* user callback function */ void *cbarg; /* user callback arg */ u8 *ubuf; /* user supplied buffer */ u32 addr_off; /* partition address offset */ struct bfa_mbox_cmd mb; /* mailbox */ struct bfa_ioc_notify ioc_notify; /* ioc event notify */ }; enum bfa_status bfa_nw_flash_get_attr(struct bfa_flash *flash, struct bfa_flash_attr *attr, bfa_cb_flash cbfn, void *cbarg); enum bfa_status bfa_nw_flash_update_part(struct bfa_flash *flash, u32 type, u8 instance, void *buf, u32 len, u32 offset, bfa_cb_flash cbfn, void *cbarg); enum bfa_status bfa_nw_flash_read_part(struct bfa_flash *flash, u32 type, u8 instance, void *buf, u32 len, u32 offset, bfa_cb_flash cbfn, void *cbarg); u32 bfa_nw_flash_meminfo(void); void bfa_nw_flash_attach(struct bfa_flash *flash, struct bfa_ioc *ioc, void *dev); void bfa_nw_flash_memclaim(struct bfa_flash *flash, u8 *dm_kva, u64 dm_pa); #endif /* __BFA_IOC_H__ */

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